The research by consumer motoring website HonestJohn.co.uk analysed 148,000 real MPG fuel reports submitted by UK drivers and discovered that hybrids and plug-in hybrids (PHEVs) have the highest gaps between official and real-world figures.
The data suggests the Mercedes-Benz C-Class C350e is the UK’s worst performer, achieving just 36.9% of its official fuel economy, while the BMW 3 Series 330e and Volkswagen Golf GTE are the second and third worst with a respective 37.2% and 38.1%. The Mitsubishi Outlander PHEV (42.5%) and BMW 2 Series Active Tourer 225xe (56.4%) complete the bottom five.
In contrast, the Lexus GS 450h tops the ranking when it comes to achieving the highest percentage of its manufacturer fuel economy figure, returning an average of 84.2%. In second place is the Toyota RAV4 Hybrid 2WD (79.3%) followed closely by the Toyota Yaris 1.5 VVT-I Hybrid with 77.9%. The final entries in the top five are the hybrid versions of the Kia Niro (77.4%) and Toyota C-HR (77.2%).
Read the article at Fleet World.
